AccessMonitor is an evaluation tool of web content accessibility guidelines according to the recomendation of the W3C: WCAG 2.1. AccessMonitor implements the rules certified by the ACT Rules Community Group.
Last update: 30/09/2025 - This page contains the set of tests (169 tests) that are implemented in the AccessMonitor validator.
- Skip Navigation Links Check.
- Innapropriate Skip Navigation Links Check
- Missing Skip Navigation Links Check
- Multiple Skip Navigation Links Check
- Missing Image Link Alternative Text Check
- Missing Site Searches, Indexes, and Site Maps Check.
- Inadequate Link Title Check
- Inadequate Adjacent Links Check
- Inadequate Identical Links Check
- Links Accessible Name Check
- Missing Links Accessible Name Check.
- Identical Links - Equal Destination Check
- Inadequate Identical Links - Equal Destination Check
- Missing Abbreviation Extension Check
- Alternative Text In Image Maps' Area Elements Check
- Inadequate Alternative Text In Image Maps' Area Elements Check.
- ARIA Role Check
- ARIA Required Owned Elements Check
- ARIA State and Property Value Check
- Inappropriate ARIA State and Property Value Check
- Permmitted ARIA State and Property Check.
- Not Permmitted ARIA State and Property Check
- ARIA Attributes Check
- Inappropriate ARIA Attributes Check
- Non Automatic Audio Content Check
- Automatic Audio Content Check.
- Autocomplete Attribute Check
- Inappropriate Autocomplete Attribute Check
- Blinking Content Check
- Inappropriate Structural Grouping Check
- Button Accessible Name Check.
- Missing Button Accessible Name Check
- CSS Font And Background Color Check
- Inappropriate Text-Background Contrast Check
- Inappropriate Line Height Check
- Inappropriate Zoomed Text Visibility Check.
- Missing Redundant Event Handlers Check
- Redundant Event Handlers Check
- Inappropriate Event Handlers Check
- Sequential Focus Order Check
- ARIA Hidden Focusable Content Check.
- Inappropriately ARIA Hidden Focusable Content Check
- Hidden Decorative Elements Check
- Inappropriately Unhidden Decorative Elements Check
- Language Attribute Check
- Inappropriate Language Attribute Check.
- Presentational Role Check
- Inappropriate Presentational Role Check
- ARIA Role Completeness Check
- Missing Fieldset Description Check
- Inappropriate Fieldset Element Check.
- Inappropriate Focus Blur Check
- Inappropriate HTML Text Formatting Check
- Inappropriate Font Size Check
- Form Submit Button Check
- Missing Form Submit Button Check.
- Inappropriate or Missing Frame Title
- Headers Attribute Check
- Inappropriate Headers Attribute Check
- Heading Accessible Name Check
- Missing Heading Accessible Name Check.
- H1 Check
- Inappropriate H1 Check
- Missing Headings Check
- Inappropriate Headings Check
- Missing Main Heading Check.
- Inappropriate Heading Content Check
- Inappropriate Heading Hierarchy Check
- Id Attributes Check
- Inappropriate Id Attributes Check
- Missing Iframe Title Check.
- Iframe Elements With Equal Accessible Name Check
- Inappropriate Iframe Elements With Equal Accessible Name Check
- Iframe Negative Tabindex Attribute Check
- Inappropriate Iframe Negative Tabindex Attribute Check
- Alternative Text Check.
- Missing Alternative Text Check
- Decorative Image Check
- Inappropriate Alternative Text Check
- Alt Text Length Check
- Graphic Button Alt Text Check.
- Missing Graphic Button Alt Text Check
- Missing Form Control Label and Title Check
- Missing Form Control Accessible Name Check
- Form Control Accessible Name Check
- Inappropriate Alt Text on Input Element Check.
- Inappropriate HTML Justified Text Check
- Inappropriate CSS Justified Text Check
- Accessible Name Matches Visible Label Check
- Inappropriate Label Element Check
- Accessible Name Mismatches Visible Label Check.
- Banner Landmark Check
- Inappropriate Banner Landmark Check
- Complementary Landmarks Check
- Inappropriate Complementary Landmarks Check
- Contentinfo Landmark Check.
- Inappropriate Contentinfo Landmark Check
- Main Landmark Check
- Inappropriate Main Landmark Check
- Singular Banner Landmark Check
- Duplicate Banner Landmark Check.
- Singular Contentinfo Landmark Check
- Duplicate Contentinfo Landmark Check
- Singular Main Landmark Check
- Duplicate Main Landmark Check
- Page Language Check.
- Inappropriate Page Language Check
- Missing Page Language Check
- Incorrect Page Language Check
- Obselete Elements For Visual Presentation Check
- Inappropriate Obselete Elements For Visual Presentation Check.
- Inappropriate Measurement Unit Check
- Letter Spacing Check
- Inappropriate Letter Spacing Check
- Link Elements Check
- Inappropriate or Missing Li Element Check.
- List Items Check
- Inappropriate List Items Check
- Description List Elements Check
- Inappropriate Description List Elements Check
- Description List Elements Order Check.
- Inappropriate Description List Elements Order Check
- List Item Check
- Inappropriate List Item Check
- Menu Item Accessible Name Check
- Missing Menu Item Accessible Name Check.
- Inappropriate Refresh Meta Element Check
- Inappropriate Redirect Meta Element Check
- Refresh Meta Element Check
- Inappropriate Delaying Refresh Meta Element Check
- Viewport Meta Element Check.
- Object Accessible Name Check
- Missing Object Accessible Name
- Orientation Restriction Check
- Inappropriate Orientation Restriction Check
- Role Value Check.
- Inappropriate Role Value Check
- Inappropriate Scope Attribute Check
- Scrollable Element Check
- Inappropriate Scrollable Element Check
- SVG Accessible Name Check.
- Missing SVG Accessible Name Check
- Inappropriate Table Caption Check
- Missing Data Table Caption Check
- Inappropriate Equal Table Caption And Summary Check
- Inappropriate Nested Table Element Check.
- Missing Table Headers Check
- Missing Data Table Headers Attributes Check
- Table Header Cells Check
- Inappropriate Table Header Cells Check
- Text Color Contrast Check.
- Inappropriate Text Color Contrast Check
- Inappropriate Duplicate Page Title Check
- Missing Page Title Check
- Empty Page Title Check
- Inappropriate Page Title Length Check.
- Inappropriate Page Title Characters Check
- Page Title Check
- Inappropriate Layout Measurement Value Check
- Layout Measurement Value Check
- Inappropriate Container Measurements Check.
- Container Measurements Check
- Audio Accessible Alternative Check
- Visual Content Accessible Alternative Check
- W3C HTML Check
- W3C Inappropriate HTML Check
- Inappropriate Pop-Up Windows Check
- Word Spacing Check
- Inappropriate Word Spacing Check